CN205538113U - Pipe network prefabricated direct -burried insulating tube in cities and towns connects air -tight test device and testing system - Google Patents
Pipe network prefabricated direct -burried insulating tube in cities and towns connects air -tight test device and testing system Download PDFInfo
- Publication number
- CN205538113U CN205538113U CN201620353587.9U CN201620353587U CN205538113U CN 205538113 U CN205538113 U CN 205538113U CN 201620353587 U CN201620353587 U CN 201620353587U CN 205538113 U CN205538113 U CN 205538113U
- Authority
- CN
- China
- Prior art keywords
- gas
- charging connection
- outer casing
- test device
- pipe network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model provides a pipe network prefabricated direct -burried insulating tube in cities and towns connects air -tight test device and testing system, includes steel pipe, outer pillar and connects the air -tight test device of locating in the joint position of outer pillar, the air -tight test device includes gaseous generating device, connect manometer no. 1, gas -charging connection and the air duct of connection between gas -charging connection and gaseous generating device on gaseous generating device, the air inlet of gas -charging connection passes through the three -way valve to be connected with manometer no. 2 and air duct, the gas outlet of gas -charging connection with weld outside the outer casing of pillar joint position and be connected, it has the through -hole of connecting the gas -charging connection to open on the outer casing, and the space between outer casing and the gas -charging connection is passed through sealing material and is sealed. The utility model discloses simple structure, gas tightness pressure control nature are by force, the clamping precision is high, the experiment effect is showing, small, nimble scene and the laboratory detection just be convenient for of removal.
Description
Technical field
This utility model relates to air-leakage test field, particularly a kind of urban pipe network prefabricated direct-buried thermal insulation pipe joint tightness test device and pilot system.
Background technology
Urban pipe network prefabricated direct-buried thermal insulation pipe be by steel pipe, hard polyurethane foam heat-insulation layer and high-density polyethylene external protective pipe combine closely heat preservation pipe prefabricated, the application of urban pipe network prefabricated direct-buried thermal insulation pipe is the important step in urban pipe network energy conservation, is also the trend that develops towards green energy conservation of urban pipe network field.
At present, urban pipe network prefabricated direct-buried thermal insulation pipe manufacturing technology is mature on the whole, but the onthe technology of site test of urban pipe network prefabricated direct-buried thermal insulation pipe is still in the primary stage.The clamping of urban pipe network prefabricated direct-buried thermal insulation pipe joint air-tightness field assay device is relatively complicated, and clamping precision requires higher.
Great majority detection, Verification Department can only complete the air leakage test of urban pipe network prefabricated direct-buried thermal insulation pipe joint by the method for laboratory simulation test, it is impossible at the construction field (site) the urban pipe network pre-prefabricated direct-buried thermal insulation pipe joint of actual bore is carried out bubble-tight detection, certification；The integrity of construction technology cannot be ensured；The safe and stable operation of urban pipe network cannot be ensured.The test of urban pipe network prefabricated direct-buried thermal insulation pipe joint air-tightness field is to weigh urban pipe network security of system, the important indicator of stable operation, is also the bottleneck of urban pipe network prefabricated direct-buried thermal insulation pipe industrialized development.Therefore, invent a kind of efficiently and the urban pipe network prefabricated direct-buried thermal insulation pipe joint air leakage test device of practicality has become Present Domestic, an outer important research topic.
Utility model content
The purpose of this utility model is to provide a kind of urban pipe network prefabricated direct-buried thermal insulation pipe joint tightness test device and pilot system, to solve existing assay device and structure that pilot system exists is complicated, clamping precision is high, testing cost is high, volume is big, mobile dumb, be not easy to the problems such as onsite application.
For achieving the above object, this utility model adopts the following technical scheme that
A kind of urban pipe network prefabricated direct-buried thermal insulation pipe joint tightness test device, the Pressure gauge one that including gas generating unit, is connected on gas generating unit, gas-charging connection and the airway being connected between gas-charging connection and gas generating unit, the air inlet of described gas-charging connection is connected with Pressure gauge two and airway by three-way valve, and the gas outlet of gas-charging connection is connected with the outer casing being welded on outer Pipe protective joint position；Having the through hole connecting gas-charging connection on described outer casing, the space between outer casing and gas-charging connection is sealed by encapsulant.
Preferably, on described airway, connection has ball valve.
Preferably, the lower surface of described outer casing is arcwall face.
Preferably, described gas-charging connection is positioned at the center of outer casing and its lower port is concordant with the lower surface of outer casing.
Preferably, described gas-charging connection is sealed by unsintered tape or sealing strip with the connection clearance position of outer casing.
A kind of pilot system applying urban pipe network prefabricated direct-buried thermal insulation pipe joint tightness test device, including steel pipe, outer pillar and be connected to the tightness test device at the joint location of outer pillar, the outer casing of described tightness test device is welded at the joint location of outer pillar, and gas-charging connection is corresponding with the seam of outer pillar.
Preferably, it is provided with heat-insulation layer between described outer pillar and steel pipe.
Preferably, in described heat-insulation layer, its axis direction is provided with an alarming line.
Preferably, the lower surface radian of described outer casing and the outer surface radian of outer pillar are consistent.
Preferably, described gas-charging connection is all sealed by unsintered tape or sealing strip with the connection gap position connecting clearance position and outer casing and outer pillar of outer casing.
Compared with prior art this utility model has the characteristics that and beneficial effect: this utility model simple in construction, air-tightness Stress control is strong, clamping precision is high, test effect is notable, volume is little, movement is flexible, be easy to scene and test in laboratory, it is possible not only to use for a long time, and detection is fast, testing staff's labor intensity is low, use cost is low, it is simple to manufacturer, unit in charge of construction, detection unit and authenticated unit use.
The setting of outer casing makes the sealing between gas-charging connection and outer pillar tighter, thus improves the test accuracy of assay device.
This utility model can be widely applied to the air-leakage test of various pipeline.
Accompanying drawing explanation
The utility model is described in more detail below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of 1-1 section in Fig. 1.
Reference: 1-gas generating unit, 2-Pressure gauge one, 3-ball valve, 4-airway, 5-gas-charging connection, 6-outer casing, 7-alarming line, 8-outer pillar, 9-heat-insulation layer, 10-steel pipe, 11-Pressure gauge two.
Detailed description of the invention
Embodiment sees shown in Fig. 1 and Fig. 2, a kind of urban pipe network prefabricated direct-buried thermal insulation pipe joint tightness test device, including gas generating unit 1, the Pressure gauge 1 being connected on gas generating unit 1, gas-charging connection 5 and the airway 4 being connected between gas-charging connection 5 and gas generating unit 1, connect on described airway 4 and have ball valve 3, the air inlet of described gas-charging connection 5 is connected with Pressure gauge 2 11 and airway 4 by three-way valve, the gas outlet of gas-charging connection 5 is connected with the outer casing 6 being welded on outer pillar 8 joint location, described gas-charging connection 5 is positioned at the center of outer casing 6, and its lower port is concordant with the lower surface of outer casing 6；The through hole connecting gas-charging connection 5 is had on described outer casing 6, space between outer casing 6 and gas-charging connection 5 is sealed by encapsulant, concrete encapsulant can be unsintered tape or sealing strip, this utility model is in one end, gas outlet outer felt of gas-charging connection 5 around enough unsintered tapes, then gas-charging connection 5 is filled in the through hole on outer casing 6, thus will be sealed between gas-charging connection 5 and outer casing 6 by unsintered tape；The lower surface of described outer casing 6 is arcwall face.
A kind of pilot system applying urban pipe network prefabricated direct-buried thermal insulation pipe joint tightness test device, including the tightness test device at steel pipe 10, outer pillar 8 and the joint location being connected to outer pillar 8, the outer casing 6 of described tightness test device uses the mode of thermofussion welding to be welded at the joint location of outer pillar 8, and gas-charging connection 5 is corresponding with the seam of outer pillar 8；Described gas-charging connection 5 connects clearance position and the outer casing 6 connection gap position with outer pillar 8 all by unsintered tape or sealing strip sealing with outer casing 6；The lower surface radian of described outer casing 6 is consistent with the outer surface radian of outer pillar 8, described outer casing 6 be outer protective polyethylene plate, outer pillar 8 be polyethylene outer protective pipe；It is provided with heat-insulation layer 9 between described outer pillar 8 and steel pipe 10, described heat-insulation layer 9 is hard polyurethane foam heat-insulation layer, in described heat-insulation layer 9, its axis direction is provided with an alarming line 7, once there is seepage in pipeline somewhere, conduction by alarming line 7, just the accurate location can demonstrate the infiltration of urban pipe network prefabricated direct-buried thermal insulation pipe in dedicated test instrument, leaking and the size of leak magnitude, in order to notice inspection is oozed personnel and processed rapidly the pipeline section leaked, it is ensured that the safe operation of pipe network.
nullThe work process of the pilot system of application urban pipe network prefabricated direct-buried thermal insulation pipe joint tightness test device: after connecting urban pipe network prefabricated direct-buried thermal insulation pipe joint tightness test device on request，When being down to less than 40 DEG C by the temperature on a warm rifle outer pillar 8 of test，Open ball valve 3，By air or nitrogen in gas-charging connection 5 is filled with outer casing 6，The blowing pressure is 0.02MPa，After steady pressure 2min，Connecting portion brushing suds at gas-charging connection 5，If gas-charging connection 5 and the connecting portion bubble-free of outer casing 6, connecting portion good seal is described，Whether the force value then observing Pressure gauge 2 11 declines，If force value is constant, the joint good seal of outer pillar 8 is described，If force value declines, the joint poor sealing of outer pillar 8 is described，Now after foaming，The perforate of the joint of outer pillar 8 should be blocked in time，Strict seal.
Claims (10)
1. a urban pipe network prefabricated direct-buried thermal insulation pipe joint tightness test device, the Pressure gauge one (2) that including gas generating unit (1), is connected on gas generating unit (1), gas-charging connection (5) and the airway (4) being connected between gas-charging connection (5) and gas generating unit (1), it is characterized in that: the air inlet of described gas-charging connection (5) is connected with Pressure gauge two (11) and airway (4) by three-way valve, and the gas outlet of gas-charging connection (5) is connected with the outer casing (6) being welded on outer pillar (8) joint location；Having the through hole connecting gas-charging connection (5) on described outer casing (6), the space between outer casing (6) and gas-charging connection (5) is sealed by encapsulant.
Urban pipe network prefabricated direct-buried thermal insulation pipe joint tightness test device the most according to claim 1, it is characterised in that: the upper connection of described airway (4) has ball valve (3).
Urban pipe network prefabricated direct-buried thermal insulation pipe joint tightness test device the most according to claim 1, it is characterised in that: the lower surface of described outer casing (6) is arcwall face.
Urban pipe network prefabricated direct-buried thermal insulation pipe joint tightness test device the most according to claim 1, it is characterised in that: described gas-charging connection (5) is positioned at the center of outer casing (6) and its lower port is concordant with the lower surface of outer casing (6).
5. according to the urban pipe network prefabricated direct-buried thermal insulation pipe joint tightness test device described in Claims 1-4 any one, it is characterised in that: described gas-charging connection (5) is sealed by unsintered tape or sealing strip with the connection clearance position of outer casing (6).
6. the pilot system of the urban pipe network prefabricated direct-buried thermal insulation pipe joint tightness test device that a kind is applied described in claim 1 to 5 any one, including steel pipe (10), outer pillar (8) and be connected to the tightness test device at the joint location of outer pillar (8), it is characterized in that: the outer casing (6) of described tightness test device is welded at the joint location of outer pillar (8), gas-charging connection (5) is corresponding with the seam of outer pillar (8).
Pilot system the most according to claim 6, it is characterised in that: it is provided with heat-insulation layer (9) between described outer pillar (8) and steel pipe (10).
Pilot system the most according to claim 6, it is characterised in that: in described heat-insulation layer (9), its axis direction is provided with an alarming line (7).
Pilot system the most according to claim 6, it is characterised in that: the lower surface radian of described outer casing (6) is consistent with the outer surface radian of outer pillar (8).
Pilot system the most according to claim 6, it is characterised in that: described gas-charging connection (5) is all sealed by unsintered tape or sealing strip with the connection clearance position of outer casing (6) and the connection gap position of outer casing (6) and outer pillar (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620353587.9U CN205538113U (en) | 2016-04-25 | 2016-04-25 | Pipe network prefabricated direct -burried insulating tube in cities and towns connects air -tight test device and testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620353587.9U CN205538113U (en) | 2016-04-25 | 2016-04-25 | Pipe network prefabricated direct -burried insulating tube in cities and towns connects air -tight test device and testing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205538113U true CN205538113U (en) | 2016-08-31 |
Family
ID=56797250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620353587.9U Active CN205538113U (en) | 2016-04-25 | 2016-04-25 | Pipe network prefabricated direct -burried insulating tube in cities and towns connects air -tight test device and testing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205538113U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404309A (en) * | 2016-12-08 | 2017-02-15 | 江南大学 | Safety valve seal test blank cover |
| CN109596285A (en) * | 2018-12-29 | 2019-04-09 | 黄晓亮 | A kind of pipe joint gas leakage pre-detection device in place |
| CN111855107A (en) * | 2020-07-08 | 2020-10-30 | 国网天津市电力公司电力科学研究院 | Method for testing sealing performance of cold-shrinkage intermediate joint of cable of 35kV or below |
| CN113196029A (en) * | 2018-12-18 | 2021-07-30 | 洛科威国际有限公司 | Method for testing and for checking the functionality of insulation engineering of industrial equipment, in particular the functionality of an insulation layer surrounding a pipeline; a system comprising in particular a pipe for conveying a cooling medium; and insulation for such pipes |
| CN114397066A (en) * | 2022-01-11 | 2022-04-26 | 沪东中华造船(集团)有限公司 | Method for testing tightness of gas kinetic energy joint in ship construction |
-
2016
- 2016-04-25 CN CN201620353587.9U patent/CN205538113U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404309A (en) * | 2016-12-08 | 2017-02-15 | 江南大学 | Safety valve seal test blank cover |
| CN113196029A (en) * | 2018-12-18 | 2021-07-30 | 洛科威国际有限公司 | Method for testing and for checking the functionality of insulation engineering of industrial equipment, in particular the functionality of an insulation layer surrounding a pipeline; a system comprising in particular a pipe for conveying a cooling medium; and insulation for such pipes |
| CN113196029B (en) * | 2018-12-18 | 2024-03-29 | 洛科威有限公司 | Methods for testing and checking the functionality of insulation; system and heat preservation |
| CN109596285A (en) * | 2018-12-29 | 2019-04-09 | 黄晓亮 | A kind of pipe joint gas leakage pre-detection device in place |
| CN111855107A (en) * | 2020-07-08 | 2020-10-30 | 国网天津市电力公司电力科学研究院 | Method for testing sealing performance of cold-shrinkage intermediate joint of cable of 35kV or below |
| CN111855107B (en) * | 2020-07-08 | 2022-07-29 | 国网天津市电力公司电力科学研究院 | Method for testing sealing performance of cold-shrinkage intermediate joint of cable of 35kV or below |
| CN114397066A (en) * | 2022-01-11 | 2022-04-26 | 沪东中华造船(集团)有限公司 | Method for testing tightness of gas kinetic energy joint in ship construction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205538113U (en) | Pipe network prefabricated direct -burried insulating tube in cities and towns connects air -tight test device and testing system | |
| CN103207054A (en) | High temperature structure sealing performance ground-based simulation testing device and method | |
| CN107907466A (en) | It is a kind of to change gas humidity and three axis seepage apparatus of port of export positive pressure | |
| CN103913279A (en) | Method and device for testing leakproofness of oil cooler by mixing helium and air | |
| CN109540760B (en) | Method for testing permeability of polyurea coating material | |
| CN111735846A (en) | Device and method for testing heat preservation and cold insulation performance of material under confining pressure | |
| CN110530772B (en) | Integrative test device of coal sample high pressure meeting an emergency and carbon dioxide displacement coal bed methane | |
| CN216284157U (en) | Helium gas tightness detection device of non-metal sealing gasket | |
| CN106567998B (en) | Gas pipeline leak detection simulation experiment platform based on fibre optic temperature sensor | |
| CN206487967U (en) | A kind of cryogenic swivel | |
| CN108072499A (en) | A kind of bilayer air-conditioner pipe air tightness detection system and method | |
| JPS628033A (en) | Method for detecting leakage of piping | |
| CN109540761B (en) | Polyurea coating material permeability testing arrangement | |
| CN203798515U (en) | Equipment for testing sealing of oil cooler by using mixing of helium and air | |
| CN207514460U (en) | A kind of generator bilayer for LNG surface units supplies tube-connecting part | |
| CN203231876U (en) | Glove leak detector applied to portable isolator | |
| CN113196029B (en) | Methods for testing and checking the functionality of insulation; system and heat preservation | |
| CN210154763U (en) | Tool for checking integrity of leakage monitoring pipe of double-sealing structure | |
| CN207488143U (en) | A kind of three axis percolation Structures for changing gas humidity and port of export positive pressure | |
| CN206223592U (en) | Bu Shi pressure-gage inspecting devices | |
| WO2021103372A1 (en) | Mobile rapid coal rock permeability measuring instrument | |
| CN206974630U (en) | Wire tube condenser air-tightness automatic checkout system | |
| CN206398376U (en) | A kind of Gas Pipe closure detection means and Gas Pipe closure detection structure | |
| CN205535084U (en) | Oil gas warehousing and transportation pipeline with leak detection function | |
| CN216201080U (en) | Leakage self-alarming valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |